Title :
Study on Iterative Demodulation and Decoding for Short-Wave Frequency-Hopped OFDM System
Author :
Xiong Junqiao ; Wu qiongli ; Gan Liangcai ; Zhu Yichao
Author_Institution :
Sch. of Electron. Inf., WuHan Univ., Wuhan
Abstract :
According to the characteristic of short-wave frequency-hopped (FH) communication, an OFDM/FH system based on iterative demodulation and decoding is proposed. By combining the advantage of NSD technique and iterative demodulation and decoding, the method could compensate the SNR loss caused by differential modulation and improve the reliability of short-wave communication and improve the system reliability. Numeric simulation results show that the proposed method could effectively improve the system BER performance and reach good transmission efficiency.
Keywords :
OFDM modulation; demodulation; error statistics; frequency hop communication; iterative decoding; maximum likelihood detection; bit error rate; frequency-hopped OFDM system; iterative decoding; iterative demodulation; noncoherent maximum-likelihood sequence detection; short-wave communication; Channel estimation; Data communication; Demodulation; Fading; Frequency estimation; Ionosphere; Iterative decoding; Iterative methods; OFDM modulation; Phase detection;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.71
